Saturn's moon Pan -- Pan, the innermost known satellite, was found from photographs taken by Voyager during its encounter with Saturn.
It was discovered by Mark R. Showalter in 1990, 9 years after the Voyager encounter.
Pan is located 133,583 kilometers from the center of Saturn and is within the Encke Gap of Saturn's A-ring.
It acts as a shepherd and is responsible for keeping the...